Circuit Board Removal And Replacement - Graco EM 390 Instructions-Parts List Manual

CIRCUIT BOARD REMOVAL AND REPLACEMENT

Fig 24
If only the circuit board ( 2 3 ) needs to be replaced in the
Pressure control. remove the screws
cover (411. See Fig
far enough to reach the wire terminals. Unsnap the
wires and finish removing the board.
25
Position the new card at the control
and the front
tors are at the top. Following the color coded diagram in
Fig 21, snap the wires onto the board. Carefully guide
the wires back into the control, making sure they don't
catch on anything, then slide the new board into place.
Check the pressure control calibration. See page
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307-724
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